A♯7sus4

A♯1D♯4E♯5G♯♭7

A dominant seventh with the fourth standing in for the third.

Written the other way round it is B♭7sus4 — the same twelve keys on a piano, a different piece of notation.

on guitar on piano the scale

Every fingering that fits a hand

Fig. 2

3546

hard

Fig. 3

334x

moderate · barre · no 5

Fig. 4

3341

hard · no 5

Fig. 5

3346

moderate · barre · no 5

Fig. 6

xabb

easy · no 5

What is true of it

A♯7sus4 is A♯, D♯, E♯ and G♯ — 1, 4, 5 and b7 counted from A♯.

On an instrument that cannot reach all 4, the 5 goes first, in that order.

The easiest of the 5 fingerings below is 3546: 4 fingers, held at the 3rd fret.

None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.

2 of the 5 need a barre.

Where its notes are on the neck

Fig. 7 — first 12 frets

The brass dots are A♯, the root. Everything else is a chord tone with its degree printed in it.

With a different note underneath

first inversion

A♯7sus4/D♯

8868

second inversion

A♯7sus4/E♯

aabb

third inversion

A♯7sus4/G♯

1311

An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.

A♯ in other shapes

A♯sus2suspended second A♯sus4suspended fourth A♯major A♯mminor A♯dimdiminished

C7sus4 C♯7sus4 D♭7sus4 D7sus4 D♯7sus4 E♭7sus4 E7sus4 F7sus4 all 374